Traveling crane



N0. 296.965. .Patented Apr. 15 1884.

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TRAVELING CRANE. No. 296.965. Patented Apr. l5. 1884.

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'To @ZZ who/1t it may concern.-

'raras tra EDWARD HUBER AND HENRY M.

BARNHART, OF MARION, OHIO.

TRAVELING CRANE..l

SPECIFICATION forming part of Letters Patent No. 296,965, dated April 15, 1884.

Application led January 26, 1884. (No model.)

Be it known that we, EDWARD HUBER and HENRY M. BARNHART, citizens of the United States, and residents of Marion, in the county of Marion and State of Ohio, have invented certain new and useful Improvements in Travcling Cranes; and we do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, whichform a part of this specification, and in whichn Figure 1 is a side view of our improved traveling crane secured to the truck of a traction-engine. Fig. 2 is a top View of the same, and Fig. 3 is a detail view.

Similar letters of reference indicate corresponding parts in all the figures.

Our invention has relation to traveling cranes, and more ,particularly to cranes secured upon the truck of a tractionengine5 and it consists in the improved construction and combination of parts of such a crane, which also may be used for excavating purposes, as hereinafter more fully described and claimed.

In the" accompanying drawings, the letter A indicates the bed ofthe engine; B B, the drivewheels; C O, the front or steering wheels; D, the boiler; E, 'the windlass; Ij, the turn-table, G, the mast; H, the crane-beams; I, the hoisting-chains, and J the excavating-bucket and its accessories. All these parts are of the same construction as the parts in the crane patented by us on the 18th of September, 1883, No. 285,100, as far as the crane and its operating mechanism are concerned, and the traction-engine and its several parts may be of any desired construction, and need no further explanation. The turn-table, it will be seen, turns above the front truck of the engine, and the mast and the crane beam or beams are secured upon it in the same manner as in our aforementioned patent, and the turn-table is turned in the same manner as in the aforesaid patent, by means of a chain passing around its edge and secured to and winding upon two drums operated by the windlass, having such connection with the windlass that it is not necessary to reverse the windlass or the engine, but simplyto throw either -drum into engagement Wththe gearing of the windlass,

when the turntable will be turned to its desired side. A chain, K, extends from the upper end of the mast to the upper end of the crane beam or beams, serving to brace and support the same, and it will be seen that the said chai-n is subjected to a very severe strain, especially when the excavating bucket or scoop bites into the ground at the commencement of its upward travel, or when, if the crane is used for hoisting purposes, the burden is lifted from the ground. For the purpose of easing and cushioning this jar or severe strain we hinge a bail, L, at the upper end of the crane-beam, the ends of the bail being preferably hinged so as to straddle the pulleys at the upper end of the'crane-beam, and the middle of this bail forms a cylindrical box, M, having a perforated closed rear end, N, and forming a receptacle for a spiral spring, O, or if desired, a yielding cushion, which bears against the closed rear end of the box. A rod, l?, passes through the perforation in the rear closed end of the box, sliding in the same, through the spring, and bears with its enlarged forward end, Q, against the forward end of the spring, while its rear end is con nected to the bracing-chain K. It will now be seen that as the strain of the burden upon the outer end of the crane-beam acts upon the same the perforated closed end of the bail will be forced forward, bearing against and com pressing the spring, which will yield, taking off the sudden jar or strain from the sliding rod and the chain attached to the same. The front part of the engine-truck is provided with two laterally-extending folding jack-beams or side supports, It,.of the same construction as the jack-beams in the aforementioned patent, which prevent the weight of the burden upon the end of the crane-beam from overturning the crane and the engine when the crane is swung to the side.

It will be seen that this crane, being attached to a traction-engine, may be transported from one place to another, and that it will be very useful for road-making and similar work, as the crane maybe in operation at the same time as the engine travels forward or backward, all the gearing of the engine and of the windlass and turn-table being so connected that the several mechanisms may be IOO connected or disconnected with the motive power from the engine without interfering with the operation of the remaining mechanisms.

Having thus described our invention, We claim and desire to secure by Letters Patent of the United States-- l. The combination of the traction-engine truck having the boiler, Windlass, and the engine, the mast secured upon the turn-table operated by the Windlass, the crane-beam secured at its lower end upon the turn-table, a brace` chain extending from the upper end of the mast, and a bail secured to the outer end of the crane-beam, and having aspring-cushioned rod secured to the outer end of the bracechain, as and for the purpose shown and set forth.

2. The combination of the upright mast of a crane, the crane-beam, a brace-chain secured to the upper end of the mast, a bail secured to the upper end of the crane-beam and forming a box for the.y reception of a springcushion, and a rod secured to the end of the brace-chain, and bearing with its enlarged end against the outer end of the spring, as and for the purpose shown and set forth.

3. The combination of a bail secured to a crane-beam and forming a boX at its middle, havingV its rear end closed and perforated, a spring bearing with its rear end against the closed end of the box, and a rod attached to the end of a brace-chain sliding in the perforated end of the box, and bearing with its enlarged outer end against the outer end of the spring, as and for the purpose shown and set forth.

In testimony that We claim the foregoing as Y our own We have hereunto affixed our signatures in presence of two Witnesses.

EDWARD HUBER.

HENRY M. BARN HART. Witnesses:

J. E. DAVrDs,

J. V. SHUMAKER. 

